Shuttle-box mechanism



' Nov. 3 192 r 1,560,006

W. S. WELLS SHUTTLE BOX MECHANISM Filed April 1923 gm Arron/12y.

Patented Nov. 3, 1925.

UNITED STATES PATIENT OFFICE WILLIAM S. WELLS,'OF BETHLEHEM, PENNSYLVANIA, ASSIGNOR; TO BENJAMIN EA ST WOOD COMPANY, OF PATE-RSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SHUTTLE-BOX MECHANISM.

Application filed April 2,

To all whom it may concern:

Be it known that I, WILLIAM S- WELLS, a citizen of the United States, residing at Bethlehem, in the county of Lehigh and State of Pennsylvania, have invented certain new and useful Improvements in Shuttle-Box Mechanisms, of which the following is a specification.

This invention relates to looms and in particular to shuttle-boxes for looms, and its object is to provide such a construction of a shuttle box as will result in stopping the entering shuttle gradually and with the least shock, noise and wear of the shuttle and the parts. of the box and in the movements of the shuttle in the box being always free of influences tending to veer it from its proper line of travel.

In the drawings,-

Fig. 1 is a transverse sectional view of the improved shuttle-box structure;

Fig. 2 is a horizontal sectional view on line 22, Fig. 1;

Fig. 3 is a plan and front elevation of the bed on which the boxes slide;

Fig. 4 is a plan, partly broken away, and a front elevation of a part of the box structure removed from the bed;

Fig. 5. is a plan and front elevation of anotherpart of the box structure;

Fig. 6 shows end elevations of the part of the box structure shown in Fig. 4; 'and Fig. 7 is an end elevation of the part of the box structure shown in Fig. 5.

I show my invention in connection with a box structure for a box loom and ofthe type where the box structure instead of moving vertically moves horizontally on the batten, as in my application Serial No. 7 24,597 filed July 7,- 1924 and being a division of this application;

The bom-stmctwe.-An elongated casting has a central upright partition jrunning from end to end thereof which for the major portion of its length has the top and bottom flanges j (giving it an I-cross-section) merging into orbeing widened to form the top and bottom substantially equilateral walls j which are joined at the front and back edges by the vertical walls j, so that 1', j and 7' form two endwise rectangular mouths j (Fig. 6) for the shuttle boxes. Integral parts of the casting are the strips j arranged one oneach side of and in the same plane as the lower flange 7" but being 1923. Serial No. 629,274.

spaced therefrom so that each forms therewith a slot 7' open only at the outer end of the casting. The mouth-forming partof the casting is just wide enough so that when the casting is placed on the batten structure and moved from one to the other of suit-- able stops thereon one or'the other of the slots will then register with the slot in the batten in which the picker stick moves. At front and back and near its inner end the casting has an upper projection j and a lower projection j", each upper and lower projection being joined by a vertical pin 7'.

Another casting comprises two rectangular formed at the inner sidesof the housings k,

being opposite the channels formed by th partition 7' and its flanges j.

It will be seen that the inner side of each box in the box structure is formed by the partition j and that the flanges j, guide the shuttle in a horizontal path. The outer walls of the shuttle. boxes are formed by steel strips m (Fig. 2) each having its ends rebent, as at m, and hooked over the walls j? and the innerwalls of the housings k.

The strips are straight and arranged so that in the absence of pressure thereon they will be parallel with partition 7'. Each housing is is traversed by-a vertical pin a which affords a fulcrum for a stifi inflexible lever 0,

whose free end is received in the space formed by the parts j j y' and 7'". Intermediate its ends lever 0 is equipped with a set screw 7) which is adapted to be screwed outward so that when. the lever, which is bowed inwardly slightly, bears against the strip m, the set screw will be subject to the pressure (more or less'according as it is set) of a bowed plate springg one end of which bears outwardlyagainst the outer wall of the, housing is and the other end of which has a bend q receiving the pin 7' Ordinarily in, shuttle boxes a so-called swell, presenting appreciable curvature at its inner or shuttle-contact face and usually inflexible, forms one wall of the box. Consequently, when the shuttle enters the box, although the swell is yieldingly backed by a spring, its nose is deflected toward the 0p posite wall producing a series of rebounds oftheshuttle bacl; and forth from one to the other of said wall and swell, the whole action representing a considerable shocl; and sudden stopping of the shuttle with incidental noise) which wears the shuttle and box and loosens and breaks down the weft package; and when the shuttle leaves the box the swell, due to its appreciable con vexity, tends by pressure on the, tapering rear end of the shuttle, to reer cant it out of its true course. In the shuttle-box herein set forth these objections are overcoine, the shuttle entering the box and coming to a stop smoothly and gradually, with out jar and practically noiselessly, and both entering and leaving the box entirely free of any influence tending either to deflect it or veer or cant it from its true position and path of movement across the batten. This isdue to providing a flexible strip, as m against which and the opposite wall the shuttle moves in wiping contact), spaced supports, as 7' 73, arranged one at themouth and the other at the other end portion of the box and opposite and substantially equidistant from the Wall 9' and inwardly bridged by the strip and having the latter held in contact with the inner surface of at least the former support, and yielding means, as 0 q, exerting inward pressure on the strip bctween said supports, the strip being at all times nearly straight. (In the preferred form herein shown and described the strip is secured at both ends to the support, as by being hooked thereto, and said means ten- I sions the strip.)

Fig. '3 shows the bed plate on which the casting mentioned slides. This bed plate,

has guideways i and 2' with which portions 3' and of the casting engage.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. A shuttle-box having a wall against which the shuttle moves in wiping contact and opposite and substantially equidistant from said wall spaced supports arranged one at the mouth and the other at the other end portion of the box, a flexible strip bridging and held to said supports in contact with their inner surfaces, said strip forming another wall against which the shuttle moves in wiping contact, and means to exert inward yielding tensioning pressure on the strip between said supports, the strip as to the part thereof against which the shuttle thus moves being at all times nearly straight. g V

2. A shuttle-box having a wall against which the shuttle moves in wiping contact and opposite and substantially equidistant from said wall spaced supports arranged one at the mouth and the other at the other end portion of the box, a flexible strip bridging and held to said supports in contact with their inner surfaces,-said strip forming another wall against which the shuttle moves in wiping contact, and means, having a convex surface bearing against the outer surface of the strip, to exertinward yielding tensioning pressure on the strip be tween said supports, the strip as to the part thereof against which the shuttle thusmoves being at all times nearly straight.v

3. A shuttle-box having a wall against which the shuttle moves in wiping contact and opposite and substantially equidistant 4. A shuttle-box having a wall against which the shuttle moves in wiping contact and opposite and substantially equidistant from said wall spaced supports arranged one at the mouth and the other at the other end portion of the box,. and a flexible strip bridging said supports inwardly thereof and hooked to them and thereby held in contact with their inner surfaces, said strip forming another wall against which. the shuttle moves in wiping contact, and means to exert inward yielding tensioningpressure on the strip between said supports, the strip as to the part thereof against which the shuttle thus moves being at all times nearly straight. V V

5. A shuttle-box which the shuttle moves in wiping contact and opposite and substantially equidistant from said wall spaced supports arranged one at the mouth and the other-at the other end 7 port-ion of the box, and a flexible stripibridging said supports inwardly thereof and hooked to them and thereby held in contact with their inner surfaces. said strip forming another wall against which the shuttle moves in wiping contact. N v

6. A shuttle box having a wall against which the shuttle moves in wiping contact and opposite said wall supports spaced from each other lengthwise of the box, in combination with a strip extending longitudinally of the box and arranged therein opposite said wall in contactwith said supports and forming another wall against which the shuttle moves in wiping contact,

having a well against said strip being approximately straight from one support to the other andflexible and free to flex between them in response to pressure of the shuttle thereagainst.

7. A shuttle box having a wall against which the shuttle moves in Wiping contact and opposite said wall supports spaced from each other lengthwise of the box, in combination with a strip extending longitudinally of the box and arranged therein opposite said Wall in contact with said supports and forming another wall against which the shuttle moves in wiping contact, said strip being approximately straight from one support to the other and flexible and free to flex between them in response to pressure of the shuttle thereagainst, and yielding means supported relatively outward of the strip and opposing the flexing thereof.

In testimony whereof I aflix my signature.

WILLIAM S. WELLS. 

